3500mAh 14.8V 4S Flat 18650 Li-Ion Battery

£49.99

  • 3500mAh & 14.8V power provides reliable energy for RC applications.
  • Long-lasting performance and trusted quality.
  • 18650 cells offer high energy density with stable output.
  • Flat, compact design allows easy installation in various models.
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  •  Delivery & Return

    Delivery

    We aim to dispatch all orders within 1-2 business days. Please allow additional time for custom orders. During peak periods, dispatch times may vary.

    Delivery charges depend on the items ordered.

    Orders containing Lithium:£6 Courier Shipping
    Orders exceeding £75:£6 Courier Shipping
    Orders exceeding £120:Free Courier Shipping
    Other:£4 Royal Mail First Class

    Please note, that postage costs outside of mainland UK will vary.

    For more information see our Help Centre

    Returns

    Please, contact us to open a return. Please ensure all returns are sent to us with a completed returns form. We aim to resolve all cases within 2 working days. 

    For more information see our Help Centre

  Estimated Delivery: Wed, Sep 09 – Fri, Sep 11  (Excl Sat, Sun)

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Product Description

The 3500mAh 14.8V 4S1P 18650 Li-Ion Battery delivers high-voltage, long-lasting power for RC cars, boats, robotics and high-performance transmitters. Built with trusted 18650 cells, this 4S1P configuration provides a stable 14.8V output, making it ideal for power-hungry RC applications requiring efficient energy delivery and extended runtimes. Its flat design ensures a space-saving fit, optimising weight and performance for demanding setups.

This battery is available with a choice of Deans or XT60 connectors, providing versatile compatibility with various RC models. The JST-XH balance lead helps maintain cell balance during charging, enhancing performance and extending battery lifespan. Whether powering an RC vehicle, robotics system or high-drain transmitter, this battery provides a reliable and efficient energy solution.

Key Features & Benefits

  • 3500mAh capacity & 14.8V output – Provides extended runtime for RC cars, boats, robotics and transmitters.
  • Quality & reliability – High-performance 18650 cells ensure stable voltage and long cycle life.
  • 4S1P flat configuration – Compact, space-saving design for seamless installation in RC setups.
  • Choice of connectors – Available with Deans or XT60 for broad compatibility.
  • JST-XH balance lead – Maintains cell balance during charging, extending battery lifespan.
  • Ideal for RC applications – Perfect for RC cars, boats, robotics and high-performance transmitters.

Safety Information

Always follow manufacturer guidelines for safe charging, usage and storage of Li-Ion batteries. Use a compatible Li-Ion charger, ensuring correct voltage and current settings. Avoid overcharging, deep discharging and exposure to extreme temperatures. Monitor the battery during use to prevent overheating. Never leave the battery unattended while charging, and store it in a cool, dry place away from flammable materials. Improper handling can cause damage, fire or injury. Dispose of used batteries responsibly according to local regulations.

Specifications

SKU 3641
Barcode 5060470215002
Chemistry Lithium Ion (Li-Ion)
Cell Size 18650
Capacity 3500mAh
Voltage 14.8V
Cell Count 4S
Watt Hours 51.8Wh
Connector Options Deans and XT60
Balance Connector Type JST-XH
Dimensions 70 x 74 x 20 (mm)
Weight 198 (g)
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